厌氧菌（anaerobic bacterium）是指在无氧环境下生长的细菌，它们能够利用无氧环境中的物质进行代谢和生长，产生各种代谢废物和毒素，对人体健康造成危害。
以下是一篇关于厌氧菌的英文范文：
Title: Anaerobic Bacteria: An Underlying Cause of Infection
Anaerobic bacteria are a type of bacteria that thrive in the absence of oxygen. These microorganisms are commonly found in the human body and can cause various infections if not properly managed.
One example of an anaerobic bacterium is Clostridium difficile. This bacteria is commonly found in the gut microbiome and can cause severe diarrhea and other gastrointestinal symptoms. When antibiotics are used, they can disrupt the balance of the gut microbiome, allowing C. difficile to proliferate and cause infection.
Another example is the bacterium Helicobacter pylori, which is responsible for gastric ulcers and other gastrointestinal diseases. These bacteria live in the stomach and require low oxygen levels to survive. They can cause inflammation and damage to the stomach lining, leading to various gastrointestinal symptoms.
Anaerobic bacteria are a significant cause of infections in hospitals and other healthcare settings, where they can thrive in poorly ventilated areas or on poorly cleaned instruments and surfaces. These infections can be difficult to treat and can lead to serious complications if not promptly identified and treated.
In conclusion, anaerobic bacteria are a type of bacteria that require low oxygen environments to survive and grow. They are commonly found in the human body and can cause various infections if not properly managed. Understanding these bacteria and their role in infection is crucial for preventing and treating these diseases effectively.
厌氧菌（anaerobic bacterium）是指在无氧环境下生活的细菌，它们通常在缺氧的环境中生长得更好，如脓肿、创伤和感染等。这些细菌能够产生一些特殊的酶，分解组织，产生代谢废物，从而引起感染。
在英文范文方面，由于您没有提供具体的范文内容，我无法给出具体的英文范文相关信息。但是，如果您有关于特定文章或报告中的厌氧菌的相关问题，我可以尝试帮助您解答。
anaerobic bacterium的意思是无氧细菌。
在英文范文中的用法如下：
例句：Anaerobic bacteria are common inhabitants of the human digestive system.
翻译：无氧细菌是人类消化系统常见的居民。